<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2017 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: zhangyajun <448901948@qq.com>
// +----------------------------------------------------------------------
namespace app\common\paginator;
use think\Paginator;

class AdminBootstrap extends Paginator
{

    /**
     * <按钮
     * @param string $text
     * @return string
     */
    protected function getPreviousButton($text = '上一页')
    {

        if ($this->currentPage() <= 1) {
            return $this->getDisabledTextWrapper($text);
        }

        $url = $this->url(
            $this->currentPage() - 1
        );

        return $this->getPageLinkWrapper($url, $text);
    }



    //总数标签
    protected  function totalshow()
    {

//        $totalhtml="<li class=\"disabled\"><span>共".$this->total."条记录&nbsp&nbsp第".$this->currentPage()."页/共".$this->lastPage()."页</span></li>";

        $totalhtml="<span>共".$this->total."条记录&nbsp&nbsp第".$this->currentPage()."页/共".$this->lastPage()."页</span>";
        return $totalhtml;

    }

    //尾页标签

    protected  function showlastpage($text = '尾页')
    {

        if($this->currentPage()==$this->lastPage())
        {
            return $this->getDisabledTextWrapper($text);

        }

        $url = $this->url($this->lastPage());
        return $this->getPageLinkWrapper($url, $text);
    }

    //首页标签

    protected  function showfirstpage($text = '首页')
    {

        if($this->currentPage()==1)
        {
            return $this->getDisabledTextWrapper($text);

        }

        $url = $this->url(1);
        return $this->getPageLinkWrapper($url, $text);
    }

    /**
     * >按钮
     * @param string $text
     * @return string
     */
    protected function getNextButton($text = "下一页")
    {
        if (!$this->hasMore) {
            return $this->getDisabledTextWrapper($text);
        }

        $url = $this->url($this->currentPage() + 1);

        return $this->getPageLinkWrapper($url, $text);
    }

    //跳转到哪页
    protected  function gopage()
    {


        return $gotohtml="<li><form action='' method='get' style='display: inline-block'><a style='float:left;margin-left:2px;'><span style='color: #777;'>到</span> <input style='height:30px; display: inline-block; width: 40px; text-align: center; margin-right:2px;color: #777;' type='text' name='page' value='1' class='form-control'> <span style='color: #777;'>页</span> <button type='button' class='btn btn-sm btn-default btn-outline' style='color: #777'>确定</button> </a></form></li>";
        // return $totalhtml;;

    }

    /**
     * 页码按钮
     * @return string
     */
    protected function getLinks()
    {
        if ($this->simple)
            return '';

        $block = [
            'first'  => null,
            'slider' => null,
            'last'   => null
        ];

        $side   = 2;
        $window = $side * 2;

        if ($this->lastPage < $window +1) {
            $block['slider'] = $this->getUrlRange(1, $this->lastPage);

        } elseif ($this->currentPage <= $window-1) {

            $block['slider'] = $this->getUrlRange(1, $window + 1);
        } elseif ($this->currentPage > ($this->lastPage - $window+1)) {
            $block['slider']  = $this->getUrlRange($this->lastPage - ($window), $this->lastPage);

        } else {

            $block['slider'] = $this->getUrlRange($this->currentPage - $side, $this->currentPage + $side);
        }

        $html = '';

        if (is_array($block['first'])) {
            $html .= $this->getUrlLinks($block['first']);
        }

        if (is_array($block['slider'])) {

            $html .= $this->getUrlLinks($block['slider']);
        }

        if (is_array($block['last'])) {
            $html .= $this->getUrlLinks($block['last']);
        }

        return $html;
    }

    /**
     * 渲染分页html
     * @return mixed
     */
    public function render()
    {
        if ($this->hasPages()) {
            if ($this->simple) {
                return sprintf(
                    '<ul class="pager">%s %s %s</ul>',

                    $this->getPreviousButton(),
                    $this->getNextButton()
                );
            } else {
                return sprintf(
                    '<div class="pagination wow animated fadeInUp flex cen size14 mt50 mb50"> %s %s %s %s %s %s  </div>',

                    //第一页
                    $this->showfirstpage(),
                    //<
                    $this->getPreviousButton(),
                    //页码
                    $this->getLinks(),
                    //>
                    $this->getNextButton(),
                    //最后一页
                    $this->showlastpage(),
                    //显示数量页码信息
                    $this->totalshow()
                    //最后再加个参数 %s 可以显示跳转到哪页
//                    $this->gopage()
//                    '<ul class="pagination"> %s %s %s %s %s %s %s </ul>',
//                    //显示数量页码信息
//                    $this->totalshow(),
//                    //第一页
//                    $this->showfirstpage(),
//                    //<
//                    $this->getPreviousButton(),
//                    //页码
//                    $this->getLinks(),
//                    //>
//                    $this->getNextButton(),
//                    //最后一页
//                    $this->showlastpage(),
//                    //最后再加个参数 %s 可以显示跳转到哪页
//                    $this->gopage()
                );
            }
        }
    }

    /**
     * 生成一个可点击的按钮
     *
     * @param  string $url
     * @param  int    $page
     * @return string
     */
    protected function getAvailablePageWrapper($url, $page)
    {

        /*if($page == 'left') {
            $class = "prev";
            //$page = '<i class="iconfont icon-xiangyoujiantou"></i>';
            $page = '上一页';
        }else if($page == 'right'){
            $class = "next";
            //$page = '<i class="iconfont icon-xiangyoujiantou"></i>';
            $page = '下一页';
        }else{
            $class = "";
        }*/

//        return '<li><a href="' . htmlentities($url) . '">' . $page . '</a></li>';
        return '<a  href="' . htmlentities($url) . '">' . $page . '</a>';
    }

    /**
     * 生成一个禁用的按钮
     *
     * @param  string $text
     * @return string
     */
    protected function getDisabledTextWrapper($text)
    {
        /*if($text == '上一页') {
            $class = "unprev";
        }else if($text == '下一页'){
            $class = "unnext";
        }else{
            $class = "";
        }*/
        //return '<a class="'.$class.'" data-text="'.$text.'" href="javascript:;"><i class="iconfont icon-xiangyoujiantou"></i></a>';
        return '<a data-text="'.$text.'" href="javascript:;">'.$text.'</a>';
    }

    /**
     * 生成一个激活的按钮
     *
     * @param  string $text
     * @return string
     */
    protected function getActivePageWrapper($text)
    {
//        return '<li class="active"><span>' . $text . '</span></li>';


        return '<a class="on"  href="#">' . $text . '</a>';
    }

    /**
     * 生成省略号按钮
     *
     * @return string
     */
    protected function getDots($text = '...')
    {

        //$url = $this->url($this->currentPage() + 1);

        //  return $this->getPageLinkWrapper($url, $text);
        return $this->getDisabledTextWrapper('...');
    }

    /**
     * 批量生成页码按钮.
     *
     * @param  array $urls
     * @return string
     */
    protected function getUrlLinks(array $urls)
    {
        $html = '';

        foreach ($urls as $page => $url) {
            $html .= $this->getPageLinkWrapper($url, $page);
        }

        return $html;
    }

    /**
     * 生成普通页码按钮
     *
     * @param  string $url
     * @param  int    $page
     * @return string
     */
    protected function getPageLinkWrapper($url, $page,$type='下一页')
    {
        if ($page == $this->currentPage()) {
            return $this->getActivePageWrapper($page);
        }

        return $this->getAvailablePageWrapper($url, $page,$type);
    }
}